From 186fda577e3f2687ad2afae01cff2f6760df8307 Mon Sep 17 00:00:00 2001
From: Daylin Morgan <me@dayl.in>
Date: Thu, 20 Feb 2025 10:00:45 -0600
Subject: [PATCH] make system configurable

---
 lib/default.nix    |  2 +-
 lib/extended.nix   |  7 +++++++
 lib/generators.nix | 28 ++++++++++++++++++----------
 3 files changed, 26 insertions(+), 11 deletions(-)

diff --git a/lib/default.nix b/lib/default.nix
index 38c9eb5..b13c40f 100644
--- a/lib/default.nix
+++ b/lib/default.nix
@@ -64,7 +64,7 @@ let
       rec {
         default = oizys;
         oizys = pkgs.callPackage ../pkgs/oizys { };
-        iso = mkIso.config.system.build.isoImage;
+        iso-x86_64-linux = (mkIso "x86_64-linux").config.system.build.isoImage;
       }
       // (import ../pkgs { inherit pkgs lib inputs; })
     );
diff --git a/lib/extended.nix b/lib/extended.nix
index 647c709..01f2d99 100644
--- a/lib/extended.nix
+++ b/lib/extended.nix
@@ -140,6 +140,12 @@ let
 
   pathFromHostName = host: ../. + "/hosts/${host}";
   hostFiles = host: host |> pathFromHostName |> listFilesRecursive |> filter isNixFile;
+  hostSystem =
+    host:
+    let
+      f = (host |> pathFromHostName) + "/settings/system";
+    in
+    if pathExists f then readLinesNoComment f else "x86_64-linux";
 
   # if the specified path doesn't exist returns an empty array
   tryReadLinesNoComment = f: if pathExists f then (readLinesNoComment f) else [ ];
@@ -208,6 +214,7 @@ in
     listify
     loadOverlays
     hostFiles
+    hostSystem
     oizysSettings
     tryPkgsFromFile
     ;
diff --git a/lib/generators.nix b/lib/generators.nix
index af5ff1a..9f18e65 100644
--- a/lib/generators.nix
+++ b/lib/generators.nix
@@ -15,6 +15,7 @@ let
     listify
     readSettings
     hostFiles
+    hostSystem
     ;
   flake = flakeFromSystem "x86_64-linux";
   nixosModules = names: names |> listify |> map (n: inputs.${n}.nixosModules.default);
@@ -30,22 +31,29 @@ let
       ;
   };
 
-  mkIso = nixosSystem {
-    modules =
-      [
-        { nixpkgs.hostPlatform = "x86_64-linux"; }
-      ]
-      ++ (nixosModules "lix-module")
-      ++ (selfModules "essentials|iso");
-    specialArgs = commonSpecialArgs;
-  };
+  mkIso =
+    system:
+    nixosSystem {
+      system = system;
+      modules =
+        [
+          { nixpkgs.hostPlatform = system; }
+        ]
+        ++ (nixosModules "lix-module")
+        ++ (selfModules "essentials|iso");
+      specialArgs = commonSpecialArgs;
+    };
 
   mkSystem =
     hostName:
+    let
+      system = hostSystem hostName;
+    in
     nixosSystem {
+      inherit system;
       modules =
         [
-          { nixpkgs.hostPlatform = "x86_64-linux"; }
+          { nixpkgs.hostPlatform = system; }
         ]
         ++ (selfModules ''oizys'')
         ++ (nixosModules ''lix-module|sops-nix'')